Cleaner for mains and pipes.



H. A. GHEEZNAN & P. O. REDPORD.

CLEANER FOR MAINS AND PIPES.

APPLICATION FILED 1330.19, 1909.

Aim/7143' have invented'certain new. and useful InI- s ATENT oFs oE.

soon A. GREENAN AND FRANK 0. nsnronn, or LOUISVILLE, KENTUCKY, ASSIGNORST0 AMERICAN wATn'a -MAIN CLEANING AND CONTRACTING co.-,,or LOUISVILLE,KEN- TUCKY.

No. assess.

Application filed leoemser 19, 1903. Serial No. 468,27;

To alt whom it may concern:

Be it known thatwe, Pinon A. Gannnan and FRANK 0. Rnnronn, citizens ofthe United States, residingat Louisville, in the county of Jefierson andState of Kentucky,

provenients in Cleaners for Mains and Pipes, of which the following is aspecification.

This invention is an appliance for cleaning out water and other mains orpipes which may have become foul or obstructed by incrustations,sediment, or othr r substances; and more particularly in appliance ofthis kind which is operated by the pressure within themainorpipe.

The object of the present Invention Is to provide a cleaner of the hindstated which will readily adapt itself to bends or angles in the main orpipe, and also one wl'iich will pass openings in the main or pipewithout danger of sticking or getting caught, and which. will pass rigidobstructions without injury.

With the foregoing objects in View, as well as others which will beapparent when the invention is better understood, the same consists inthe construction and arrangement of parts hereinafter described andclaimed,

reference being had to the drawing heretoannexed, in which: u Figure 1we longitudinal sect onal view of i the appliance in position within amain or p1pe. Fig. 2 is. a transverse section on the line 2-2 of Fig. 1Fig. 3 is a transverse section on the line 3-3 of Fig. 1.

In the drawing, 5 denotes a series of longitudinal resilient stripswhich are secured at their ends to conoidal blocks 6 and 7', re-

spectively, whereby a structure is had which is tapered at its ends. Tothe outer surface of each strip is secured a pair of scraperblades 8having'their scraping ed es curved to conform to the inner surface 0?the main or pipe to be cleaned. The blades are presented in oppositedirections, and are set on the strips to extend obliquely with respectto the axis of the main or pipe.

for the blocks 6 An adjustable connection j and 7 is provided, saidconnectionco nprising a screw-threaded spindle 9 extending rear--ifardly from the center of the inner end of.

the block 6, in the direction of the block 7, in which latter block is acentral longitudinal bore, in, which is mounted a stem 10' havingSpecification oi Letters Patent.

- CLEANER, FOB; MAKITS AND PIPES.

Patented July 2o, 1909.

a threaded bore into which the spindle screws. The stem projects fromboth ends of the block 7, the threaded bore being in that end of thestem which pro'ects from the inner end of the block, said on extendingin the direction of the "block 6, and also being .provided with a collar11 which abuts against the inner end of the block 7. The stem fitsloosely in the bore of the block 7 so that the latter is free to slideback and forth thereon, and said stemis also rotatable in the bore ofthe block. The'other end of the stem is provided with a head-:12 havinga Socket 13 for a purpose to be presently. described, The outer-end ofthe block 7 has a central'recess 14 through which the stem 10 passes,and

coiled around the stem, between the head 12 arid the inner end oftherecess, is aspring 15 which normally holds I the block 7 pressed againstthe collar 11, said spring opposing",

away from the block 6;

By reason of the herein-described connection between the blocksyfi and7, it will be seen that when the st m o is rotated, the blocks will aproaeh -each other, or-recede, according to te direction infwhich thestem the movement of the block in a direction is rotated, and as thestrips 5 are resilient;

they will be spread or'contracted, thus mov ing the scraper blades 8outwardly'or inwardly, whereby they are adjusted to the diameter of themain or pipe to be cleaned, and by these meanswe are 'alsoable to re '4late the degree" of. pressure" the scraper bla es exert on th'ei'nnersurface of the main or'pip'e. By making the block 7 slidable on thesten'i 10, the scraper blades are permitted to yield when they encduntera rigid obstruction, so that they may pass over the samewithoutinjuryfand when'the obstruction is passed, the spring 15 restores theparts to their nor mal position. I V j a From the front end or apex ofthe block 6 projects a-s'hortstem 16 which is threaded to screw into a"disk 17. In front of this disk, and spaced a suitabledistancetherefrom,is

a second-disk 18, the two disks being connected by aster 19. Each diskhas a series of 0' en-ings 20, which are controlled by a rotata ledamper 21. To the back of the disks are secured leather- 01" otherflexible packing was-hers 22 to render the same wa-' ter-tight, saidwashers haying a greater diameter than the disks, so as t'o projectbeyond the peripheries thereof. The washers eiso enabling two or more ofthe appliances to he haveopenings which re ings of thedisks. thepressure of the Water or other fluid in the Ernan or pipe against thedisks forces the epee therethrough, the disks operating as pistons of anengine. By the dampers e area of the openings may be aried according tothe pressure in them'ain or pipe. With a high pressure the dampers are,set to uncover a large area of the openings, and

ister with the open with a low pressure the openings are partly or g onthe disk 17,

entirely coveredj Two disks are employed to'prevent the a phance fromgetting caught 111 passing si e- ;openings in the main or'pipe. Tofurther guard against this, we mount spring strips said strips extendingin an outward curve in the direction ofthe, disk 18. The periphery ofeach disk is made up of hinged sections 24, in order that the disks nlaypass rigid obstructions. A' spring hinge 253 provided for said sectionsin order that they may be restored to their normal position after theobstruction is passed.

The socketed'head' 12 is for the purpose of It w'i 1 he understood that.to one of the pistons, and having coi pied together; 0 ihe' apphanceherein described 18 simple in structure, has no complicated parts to getout of order, and it efl'ectualiy serves the purpose for which it isintended.

We do not limit ourselves to deteiis of operation or constructionv asshown, as these may he modifiedin many particulars with outdejmrting'from the spirit of our invention. w

, In a cleaner for mains and pipes, a scraping member; a pair of pistonsconnected thereto for propelling the same, said pistons being 10- c'atedin close proximity to each other; and outwardly. bowed springs fastenedat one end their free ends in engagement with the other piston.

In testimony whereof we aflix our signatures in presence of twowitnesses.

HUGH A. GREENAN.

FRANK'O. REDFORD.

Witnesses:

H. MENEBROKER, E. SANDERS.

